Stripper device.



T'. J. YATES.

STRIPPER DEVICE. APPLICATION F.I LED OCT. 19. 1915.

1,1 86 6M, Patented June 13, 1916.

lnvenIor. Thomas J Yates,

Al'tysy aaeeao. I

I THOMAS J. YATES, OF SALEM MASSACHUSETTS, ASSIGNOR TO YATES MACHINECOMPANY, OF SALEM, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

STRIPPER DEVICE.

Specification of Letters Patent. Patented June 13, 11916.,

Application filed October 19, 1915. Serial No. 56,771.

To all whom it may mm:

Be it known that I, THOMAS J. YATES, 'a citizen of the United 'States,residing at I Salem, county of Essex, State of Massachusetts, haveinvented an Improvement in Stripper Devices, of which the followingdescription," in connection with the accompanying drawing, is aspecification, like characters on the drawing representing like parts.

This invention relates to improvements in apron to pass the articlesover the heated for their replacement. six operatives. are employed 1nconnection surfaces. .In these niachines difficulty is encountered inefiiciently preventing the articles, passed between the rolls and theconcavedsurface, from following the surface of the roll in itsrevolution instead of passing onward in the desired proper course overthe ironing chest. At present a plurality of strings orcords, eachtransversely embracing the whole series of rolls, is em-.

ployed to overcome this disadvantage. These cords rapidly deteriorateand break, entailing a stoppage of the whole machine with each set ofrolls, the loss entailed by this disadvantage alone is considerable.Further, disfiguring creases caused by'these cords are left in thefinished work. Heretofore, 'it has been attempted to overcome thesedisadvantages by employing a rigid metallic plate extendinglongitudinally each roll, the edge of the plate being in contact withthe cloth covering of the roll adjacent the junction of the roll and theheated sur- As approximately face. This type has generally beendiscarded as defects develop in that the articles being ironedwouldcatch at difi'erent points on this metal dofiing plate with theresult that the articles would become jammed between the plate and theroll. And these plates similarly and more quickly wore out the clothcovering of the roll. through frictional contact therewith.

Another form of ironing machine in com- 1ts flexibility or pivotalmounting, out of operation and will still permit the adjacent stripperfingers properly to function and thus prevent the article either frombecoming caught and torn or from following the roll.

An object of this invention, therefore, is to provide an eflicientstripping means for the rolls of ironing and similar machines.

Another object is to provide a plurality of longitudinally flexibleindependent pivotally mounted strippers for the roll of an ironingmachine.

Other objects of the invention will more fully appear fromthe followingdescription and the accompanying drawings and will be pointed out in theannexed claims.

In the drawings, Figure 1 is a longitudi nal sectional view of a portionof an ironing machine of the flat or horizontal type; Fig. 2 is a crosssection of one of the rolls show ing a stripper finger and its mounting;Fig. 3, is a front elevation showing two of the stripper fingers and anangle iron support finger is adapted normally to be positioned in lightcontact substantially tangentially to stripper finger;- Fig. '5 isanunde'rside View suitably journaledfa series of revolubly acof theconstruction-shown in jFig. 4, the

stripper finger being isho'wn'in dotted line; I Y

' Lgto the angle, iron bar 12. The ear is apertured to receive a, pivotpin, the end por- Fig. 6 is a diagrammatieg view showing the stripper3fiPP i oan upright machine.

The ironingmachine, to which this selected 'embodiment' of theinvention'is shown as applied, is of thepsual type and consists of aheated ironing chest 1 above Wl'llCh' 1s tuated rolls 2. The upperor.ironing surface of the.. chest;-'has a plurality of arcuate or concaved;su;rfaces '.3, which correspond substantially .to the contour of aportionof the adjacent-roll surface. Each roll has a suitable clothcovering 4. An endless apron 5 runs around the rolls 6 and 7.'

The flat work is fed to the is carried to the front roll at the right inFig. 1 and. is pressed thereby against the corresponding concaved'surface 3 of the taining member or holder 9 therefor. The. j 30 bladesmay be formed of any suitable ma terial but are preferably composed. ofresil ient blue tempered ribbon steel, having a normal arcuate form tocorrespond substantially to the curvature of an arc of the roll surface.The, lower or freeend 10 of each the perlpheral cloth covering 4; of therespective roll therebelow. The upper end 11 of each blade, in thepreferred construction, is attached to the holder 9. Each holder of a.roll series is retained by a supporting bar 12 which extendstransversely the ironing machine. These bars 12 are disposed, in thisembodiment, one above each of the rolls 2, each being substantiallyadjacent the vertical plane through the axis of the roll and I extendingacross the machine frame usually paralleling the corresponding roll.These bars 12 are illustrated as angle irons and may be secured attheirrespective endsto the usual-frame sides of the machine in any suitablemanner not herein necessary to be shown.

terial but are relatively inexpensively prothe desired form. In areshown as having has flanges 13 on its downwardly presented face. Theupper blade end 11 is-sec'ured to this face by a rivet 14 and relativelateral or rotatory movement between the holder and finger prevented byI I apron5 from asuitablev feed table, not shown, .whence it I tsurfaces by the The holders 9 may be of any suitable mathe flanges 13which engage the holder between the depending arms 16 of thebracket l7jsecured by suitable rivets 18 tions of which are held by the btracket.

arms 16.

As he'stri' steel blade is. of Such light 1 weight that a very slighttension will throw the finger away from the cloth covered roll' 2, ithas, been found desirable to provide a means assuring a light yetreadily yield'able contact. A downward pressurerupon the upper endportion of thefinger effectually achievesthis result'ari d a simplemeans of its attainment is to form the holderwith" an enlarged integralportion constitutinga weight 19 which preferably is formed to extendover the finger and functions to as-' sure a yieldable contact. ThisWeight being adjacent the pivotal-line of the finger*,j5 does notgreatly hinder the throwing out of the'finger when it functionsimproperly. y ;The operation of this structure is eiliciently simple.Taking for example small articles such as fed to the endless apron 5with a plurality of articles abreast, and, passing between the 'frontroll 2 and its opposed concaved portion of the steam chest, the tendencyof napkins or towels, they are the articles in. their moist condition isto follow-around or to adhere to the roll 2. Several of theroll-contacting lower ends, 10 of the stripper fingers, whicharerelatively' numerous and spaced close together on this front roll,engage each of the articles andstrip them from the roll. Should aportion of an article catchone of the fingers, the remainingfingersengaging the same article would effectually strip the article from theroll. The obstructed finger, readily yielding'throughits flexibility andthrough its pivoted weighted. holder, would be swung away from the rolland article and become readily releasedto be returned immediately tonormal shape and position of roll contact by the resiliency of thefinger material and by gravitative force through the weight 19. Thetowels or other fiat work are then carried onwardly "and held in contactwith the successive ironing revoluble rolls 2. As the towels or otherflat work near the rear of the machine, they become more nearly dryanlcll tend the less to adhere to the successive re s.

Thefiat work articles at the beginning of the ironing operation arerelatively moist and have greater tendency to stick to the have to therolls with which they laterconacting tact in this drying and ironingprocess":

cloth cover 4 of the front roll than they I Therefore, relatively fewerstripper fingers .are required at the rear rolls than at the ones nearthe front or feed end of the ironing machine. Hence, from the rear tothe front of the machine the numberof stripper fingers per rollpreferably is progressively increased and it results thatthe spacebetween the adjacent stripper fingers on each roll is correspondinglydecreased and the. stripping, function thus augmented at the front orfeed end.

The fiat work at the extreme rear end after being stripped fromtherearmost roll is further dried and folded or treated in the usualmanner.

An, adaptation of this selected embodiment of the invention to theordinary so called upright machine is shown diagramrfiatically in Fig.6. Therein, is shown the usual revolubly actuated heated drums 20 and21, a feed table'22, a plurality of'drumcontacting rolls, which functionto hold the flat work received from the feed table in contact with therevoluble heateddrum whereby the work is passe'd aroun'd the'up- I perportion of the drum periphery whence the work passes to the downwardlymoving adjacent portions of the endless apron 23 which carries the workto the lower heated drum and thenceguided around the drum 21 by a secondsimilar apron 24 to the folding table 25. Stripper fingers embodyingthis invention are provided for the upper drum-contacting rolls.However, in the case of rolls located as are the rolls 26 and 27 wherethe lower end of the stripping finger must assume a roll-contactingposition at or beyond the vertical plane of the drum axis, it is obviousthat the weight 19 must assume a position well beyond the pivot of thefinger holder and at such angle to the arc of the finger that theresultant effective force will be exerted to'hold the lower finger endsin the requisite light and yielding drum contact. This is effectedsimply by elongating the body 9 of the holder and making it ofsuflicient weight to at the roll surface.

There is thus provided an inexpensive, simple highly efficient strippingmeans which may be fitted to the present types of ironing, calenderingand like machines with few and easily effected structural changes in themachines. The use of strings or cords is eliminated, and delays entailedby stopping the machine are practically negligible. And with this typeof stripper, damage to fine fabrics, fringes, embroiderings andborgivethe desired pressure ders is minimized as the flexible nature of r thestripping fingers admits of maximum yieldability.

In both types of machine the rolls are padded and covered with cloth,and this covering wears or becomes torn so that it is otherwiseoccasionally necessary to recover or repair one or more of the rolls.The stripping mechanism of this-invention eliminating the use of stringsor cords running around a plurali ty of the rolls, and being itself aunitary structure with respectto each roll enables a single roll to berepaired or recovered.

without disturbing th'other rolls.

It is to be understood that the construction disclosed herein isillustrative but not restrictive and that various modifications .may bemade within the scope andmeaning of the claims which follow.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A. stripper for ironing rolls comprising a finger and a supporttherefor positioned above the roll,said finger having its upper endsecured to said support and its lower end in yieldable contact with theroll to and the finger upon improper functioning j I maybe thrown out ofworking position.

3. A stripper for ironing rolls comprising a'h arcuate nger whose lowerend normally rests against a roll, said finger being resilientthroughout its length, and a weight having means for securing the up'- iI per end of the finger thereto and having an extension adaptedto bepivotally mounted above an adjacent roll whereby the finger is pivotallysupported without impairment of its resiliency and the lower end thereofis held in yieldable weighted contact with said roll. i

4. Stripping means for ironing rolls comprising a plurality ofindependent fingers, each being resilient throughout its length, asupportfor. said fingers whereby the lower ends thereof normally restagainst an adjacent roll, independent means for pivotally mounting eachof said fingers on said sup. port whereby upon improper functioning ofany finger it may be thrown out of work.-

ing position without affecting the function of the others.

5. Stripping means for ironing rolls comprising a plurality ofindependent fingers,

each being resilient through its length, a support forsaid fingerswhereby the lower ends thereofnormally rest against an adj acent roll, aplurality of weights indem ently andpivotally mounted on said suppo'rt,and means for securing'the respective upper ends of said fingers-each toone of said \yeights whereby each finger is pivotally and independentlysupported Without impairment of resiliency and ,held in yield-; ablecontact at its lower end. with the roll 2 THOMAS J. YATES. v

have signed my

